Text messaging company needs a website

smsive.com

SMS messaged for small businesses/shops/gyms
ie:
crossfit boxes (gyms) - notify their members of closures or specials.
Gyms - notify their members of specials
Boutique clothing shop - notify their mailing list of special discounts or sales

Needs to be friendly to small/computer illiterate people
Easily transferable to a responsive/mobile website
I want the main details to be shown without needing to scroll (price/discounts/some text descriptions)

Home Screen
- Login(+Forgotten Password link)/Signup button
- Highlight the price 6c and 'no minimum purchase' + 'credit never expires'
- Spot for specials: ie 'Refer a friend and receive $10 credit (plus room for a sentence of fine print)

Content Page
- Pictures/text
- Signup form with highlighted validation (errors etc)

Logged in msg send form
- logged in menu - Home - Account - Messaging - History - Settings - Logout
- message send form (see attachments for an example - i want it nicer looking though)
--- the user can enter messages and select a contacts either from a group or search for individual contacts and add them to a list.
----They can add text and it will show up in a picture of a phone showing them how it will look.
---- options for using a template - options for using opt out codes
---- Can send right away or schedule